Nitemare Cafe

A day in the life of a computer geek

Compaq Portable Tube Swap

June 19, 2025 — Wintermute

After watching a video of someone doing the same to their IBM portabe, I decided to swap the tube in my Compaq Portable, which had a green CRT, to a white one from a Mac Plus. You have to swap the yoke because the wiring is different, but the pinout for the neck board is the same, so it went pretty well and only required minor adjustments when I was done. A white screen on this machine is absolutely beautiful.

Tags: retro-computing, compaq, crt

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